使用KindEditor富文本编译器实现图片上传并回显

public class UploadRespBean {

    private int error;
    private Object url;
    private String message;

    public UploadRespBean(int error, Object url, String message) {
        this.error = error;
        this.url = url;
        this.message = message;
    }

    public UploadRespBean() {
    }
  //省略set和get方法
}

@RequestMapping("/upload")
    public UploadRespBean upload(HttpServletRequest request, MultipartFile imgFile){
        StringBuffer url = new StringBuffer(); //存放返回url地址的容器
        String imagePath="/Hospital_Item/"+sdf.format(new Date()); //图片的相对路径，格式：/blogimg/日期
        String realPath = request.getServletContext().getRealPath(imagePath); //获取项目的绝对路径
        File imageFolder = new File(realPath); //查看是否有该文件夹

        if (!imageFolder.exists()) { //如果不存在
            imageFolder.mkdirs(); //创建该文件夹
        }
        //如果存在,将图片的名称重新命名
        String imageName= UUID.randomUUID()+"_"+imgFile.getOriginalFilename().replaceAll(" ", "");
        //获取返回的url
        url.append(request.getScheme()) //相当于http
                .append("://") //相当于http://
                .append(request.getServerName()) //相当于http://localhost
                .append(":")//相当于http://localhost:
                .append(request.getServerPort())//相当于http://localhost:8080
                .append(request.getContextPath()) //获取该tomcat容器的路径
                .append(imagePath); //相当于http://localhost:8080/项目容器/blogimage+日期

        try {
            IOUtils.write(imgFile.getBytes(), new FileOutputStream(new File(realPath, imageName))); //存image图片到该realPath路径中
            url.append("/")//相当于http://localhost:8080/项目容器/blogimage+日期/
                    .append(imageName);//相当于http://localhost:8080/项目容器/blogimage+日期/图片名称
            return new UploadRespBean(0,url,"上传成功!"); //上传成功后返回图片地址
        } catch (IOException e) {
            e.printStackTrace();
        }

        return new UploadRespBean(1,"","上传失败!"); //上传成功后返回图片地址
    }